Air circulating radiator



July 5, 1949. R. s. FISHER AIR CIRCULATING RADIATOR 2 Shets-Sheet 1 Filed March 25, 1947 IN V EN TOR. fax??? 6. 566'! R. G. FISHER 2,475,088

AIR CIRCULATING RADIATOR July 5, 1949.

Filed March 25, 1947 2 Sheets-Sheet 2 INVENTOR. #01577 5 fin 1? Patented July 5, 1949 2,475,088 AIR CIRCULATINGJBADIATOR Robert -G.'-'=Fisher, Goplay,- Pa. Application March .25, 1947., Serial.No..Z37,181

2 Claims.

invention relatesLto' improvements in heating radiatorshaving air circulating means.

,"A prirnary'object of the invention is to provide agradiator ofithe. above mentioned class, which is simplified'in design, and therefore easy and very economical :to t fabricate.

A further object of the invention is to provide a'heating radiator having novel means for circulating'iheated air in a room.

iAgsti-ll'further object is1toprovide a radiator of'the class-mentioned; having means to circulate warmcair-during the winter, and cool air during the summer, arid-whichis adapted to employ either steam or hot water for .a heating medium.

A-furtherobjectisto provide a radiator of welded construction, provided with air I heating ducts, suc-h'= ducts--being in-directthermal contact witha -hea-ting surface-of the radiator.

"Otherpbjects and advantages :of the invention will beapparent during the course of the following description.

the: accompanying drawingsiorming a part oi-this application, and in which like numerals areemployedto :designate like parts throughout the same,

Fig-ure-l is a-perspective view of the radiator and-radiator cover,-an'd Showing an associated fan,

-Figured is a perspective view of the, radiator with the radiator tcover removed,

'-"Figure --3-*is a -horizontal .section' taken onv line 3-3 of Figure2,

Figure 4 isa verticalsection taken on line 4-4-of'-=-Figure 1,

Figure 5 is a vertical longitudinal section taken on line 5-5 offFigurelS,

Figure. 6 is ,a perspective view of air ducts removed, and

Figure 7 is a vertical detail section taken on line 'l'-| of figure 3.

In thedrawings where for the purpose of illustrationtis shown a preferred embodiment of my invention, ..the numerals Ill and all designate lower and upper reservoirs or headers respectively. .Eachof these headers Wand ll includes ahorizontalsection of standard structural channelirontlz which forms the bodyrnember of the header. The channel sections 12 of the headers are U-shaped, and their main horizontal webs l2 are disposed inwardly in opposed relation with respect to the top and bottom of the radiator. The channel section 12 of each header is provided with a plurality of parallel longitudinal rows of spaced circular openings I3, three longitudinal rows being satisfactory. The openings [3 of the two channelsections'll arein vertical alignment andreceive theoppositeends or vertical cylindrical tubular columns .orpipes .14 within" them,,see"fFigure;4. .These pipes IA aresecurely welded in place withinLthe openings '13, -.an',dl.form

liquid tight jointsf withlthe .channel sections all.

The pipesjlfi thus elded} place tielthe channel sections [2 of-the'headersitfl and LI together .to form a rigidstrueture. .The outer. open sidesof the channels. .12 arercoyered .withsheet metal" strips 15. These. sheetmetal.strips iiarewelded to'the outerlongitudinaledges of thesidevertical,

webs of .the channel sections, iorthe ,full. length of the. same, and. formed therewith a liguid'tight connection. The strips .15 .Iormlithehpttom and top of the. loweran'd supper headers. respectively. The open endspf theflownandJApDBrheaders are coveredwith sheet metalstrips i5, securely welded .to the ends .of .the channel isections at; and also'to the .endsmf the strips i5. These wel'dedconnections aarevalso liquid tight. .It is thus seen .that aheating radiator structure is provided comprising the. lower .and upper horizontal headers .l.0 .and t-.l ,-and the verticalpipes or columns 14. The two headers .are in cornmunicationthroughthe pipes IA ,.and the radiator structure -.is adapted ,to the .used with ;steam .or water .as the .heating medium.

.In thedrawings, the-:radiator isillustratedas a .steamradiator, -,and .theflower .header JUL-11S provided with a steam inlet pipe -.I--I massing throughan opening. inone of .theFends iii-.ofsuch header. The pipe..l.1 forms :a liquid tight joint withtheend. l5 of the lower header.

The radiator is provided with four legs l8, arranged. at the cornersaof t the radiator. :and .these legs are welded .tozthea'bottom of :thelower; header 1 n directly. beneath .the avertical side webs. or the channel ,=secti0n I-.2,of thatheader. With this arrangement, the. side Webs of the channel sec-' tions lpport the v v1r.eig1'1t of the radiator, rather than the thin sheetmetalzstrip 1510f thebottom header. The legs It may be madeifromsections of-.sta-ndard structuralqangle iron of suitable size, cut ,in .equal lengths. The legs IQ of course, maintain the. radiator rspaced slightlyabove the floor.

At the end of the radiator, remote from the inlet pipe I1, is an air fan I9, supported by any suitable means, and adapted to be driven by an electric motor, not shown. The intake or suction side of the fan l9 may be connected to a fresh air duct beneath the floor of the room, or it may take in air directly from the room, as desired. The discharge side of the fan I9 is connected to an air duct 20, leading to the adjacent end of the radiator. This air duct 20 is connected with a transverse air duct section 2| disposed upon the top surface of the bottom header. The air ducts 20 and 2| are formed of sheet metal, and they are rectangular in cross-section. The transverse air duct 2| leads, at its opposite ends, into parallel longitudinal rectangular branch air ducts 22, also disposed upon the upper surface of the lower header l0, and in direct thermal contact therewith. The bottoms of the air ducts 2| and 22 may be tacked, or spot welded at intervals to the upper surface of the header ID, to permanently connect them with the header. The branch ducts 22 are closed at their ends 22', remote from the transverse duct 2|. The branch ducts 22 are rectangular in transverse cross section, and are provided with removable and interchangeable sliding tops or covers 23. To allow this, the vertical sides 24 f the branch ducts 22 are provided with upper longitudinal horizontal flanges 25, extending for the full length of the branch ducts. These removable sliding covers 23 have short integral depending sides 26, provided with inwardly projecting horizontal longitudinal flanges 27, to slidably engage beneath the flanges 25. The covers 23 may also be provided with a handle extension 28, formed integral therewith, to facilitate the removal of the sliding covers. The removable covers 23 are provided with a plurality of longitudinally spaced openings 29 for the passage of air outwardly from the branch ducts, and the size and shape of these openings 29 may be varied on different covers, as desired. During the winter, when heated air is being circulated through the radiator pipes and room, it is desirable to use a cover 23 having a plurality of small air discharge openings 29, and during the summer when it is desired to circulate cool air through the room, a cover 23 is employed having larger air discharge openings or slots.

Particular attention is called to the arrangement of the ducts 2| and 22 upon the top surface of the lower header ID, to provide a large area of contact between the ducts and the header. This results in the efilcient heating of the air within the ducts 2| and 22 by thermal conductivity, as well as by radiation from the pipes l4 and headers, after the air discharges through the openings 29.

This radiator provides a very large surface or area for radiation, and the headers I0 and II as well as the pipes l4 make up such heating surface.

When steam or hot the radiator it will radiate heat to a room, and when the fan I9 is started, and air under pressure is introduced into the ducts 2| and 22, such air will discharge through the openings 29 and circulate evenly through the room being heated. The radiator may be used with or without the fan in operation.

A rectangular radiator cover 30 is provided, and this cover is slipped over the radiator and rests directly upon the floor. The cover is not supported by the radiator, and it is open at the 4 bottom. The cover 30 is provided with suitable slots or air vents 3| in its sides, ends, and top, to allow free circulation of the air being discharged from the branch ducts 22 into the surrounding room.

The radiator is simple, compact, extremely economical to build, and provides an eificient heating and air circulating unit.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same and that various changes in the shape, size, and arrangement of parts may be resorted to, without departing from the spirit of my invention or the scope of the subjoined claims.

Having thus described my invention, what I claim is:

1. An air circulating radiator, comprising elongated upper and lower headers, outer longitudinal rows of pipes connecting the headers and communicating therewith, an inner longitudinal row of pipes connecting the headers and communicating therewith and spaced from the outer rows of pipes, substantially horizontal elongated air ducts arranged between the outer and inner rows of pipes and in thermal contact with the top of the lower header, the air ducts extending for substantially the entire lengths of the inner and outer rows of pipes and being provided with longitudinally spaced air discharge openings in their tops, means to force air into the air ducts, and a cover to fit over the radiator and provided with air discharge vents.

2. An air circulating radiator, comprising elongated upper and lower headers, outer longitudinal rows of pipes connecting the headers and communicating therewith, an inner longitudinal row of pipes connecting the headers and communicating therewith and spaced from the outer rows of pipes, a substantially U-shaped air duct mounted upon the lower header and in thermal contact therewith, said U-shaped air duct including laterally spaced elongated branch ducts arranged between the inner and outer rows of to force air into the U-shaped air duct and a cover to engage over the radiator and provided with air discharge vents in its sides.

ROBERT G. FISHER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 258,374 Chapman et a1. May 23, 1882 281,897 McAvity, Jr. July 24, 1883 1,624,565 Stoddard Apr. 12, 1927 2,122,168 Woolley June 28, 1938 2,191,519 Cornell, Jr. Feb. 2'7, 1940 2,360,343 Hill Oct. 17, 1944 

